Telescopic rammer for ordnance.



PATNTED NOV'. 28, 1905.

APPLICATION FILED JULY 30.1904.

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A. A. THRBSHBR.

TELESGOP-IG HAMMER POR ORDNMICE.A

APPLICATION I EILED JULY 30,1904.

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Specification of Letters Patent.

Patented Nov. 2s, 1905.

I Application filed July 80,1904. Serial No. 218,867.

T0 all whom t may concern,.-

Be it known that I, ALFRED A. THRESHER, of Dayton, in the county ofMontgomery, State of Ohio, have invented certain new and usefulImprovements in Telescopic Rammers for Ordnance; and I do hereby declarethe ,following -to be a full, clear, and exact description of the same,reference being had to the accompanying drawings, forming a part of thisspecification, and to the letters of reference marked thereon.

This invention relates to mechanically-operated rammers for ordnance,and more particularly to that class of rammers formed of telescopicsections and adapted to be located on a fixed mount in rear of the gun.This class of devices is primarily designed for use in confinedareas-as, for instance, a turret of a ship. Hence compactness combinedwith great power are prime essentials; and it is one of the objects ofthe present invention to provide a compact and self-contained structureembodying the rammer mechanism proper, together with the motor foroperating the same.

A further object of the invention is to provide an improved means forsecuring the motor in the rammer-mount, which will permit of the motorbeinfI constructed as an entity, which may be readily placed in positionand secured in its pro er position with relation to the rammer mec anismor removed therefrom should occasion require, and ,at the same time thearrangement will'be such that the rammer with its motor will occupypractically no greater space than the rammer mechanism and its mount.

Referring to the accompanying drawings, Figure l is a side elevation,with portions broken away and in section, of a rammer embodying thepresent invention. Fig. 2 is a vertical section in a lane at rightangles to Fig. l and-centrally o the motor.

Like letters of reference in both the figures indicate the same parts.

The rammer mechanism proper or the telescopic sections, together withthemechanism directly connected therewith for extending and retractingthe same, is similar to that now in common use and "is substantially asdescribed in United States Patent N o. 627,404, granted to T. C. FentonJune 20, 1899. Specic description of the same is therefore unnecessary;but it will be understood that the telescopic sections A are operated bythe shaft-B through the medium of the rack and pinion O and hauling-inrope D. The said telescopic sections, together'with their operatingmechanism, are carried by a mount or frame F, adapted' to be locatedpermanently in rear and in line with the gun when the latter is inloading position, and in the present invention said mount contains themotor mechanism, as well as the manually-o erated mechanism, forimparting rotation to t e shaft B. Said shaft B is connected at one endwith the usual train of gearing G for manual operation of the rammer,and at the opposite end or on the opposite side of the mount it isprovided with a relatively large sprocketwheel H, around which a drivechain H passes. Drive-chain H extends back to and around a smallsprocket-wheel K, located directly on the motor-shaft L.

The motor is an electric motor which is self-contained and is located inthe rammermount directly beneath the telescopic sections or in suchposition that its armature is in the mount, while its shaft projects atthe sides. In its construction the motor embodies a center or field ringM having an external fiange m and inclosing heads N and N in which theshaft L is journaled. The fieldring adjacent the flange m and the head Nare formed to fit openings in the opposite side walls of therammer-mount, while the flange m fits against the outer side of one ofsald walls, all as shown clearly in Fig. 2, the whole motor being rmlyheld in place by bolts O passing through the flange m and both sides ofthe mount. The annular flange thus constitutes the means for locatingand securing the motor in place, although, if desired, head N may alsobe secured to the mount by tiepieces P, held by the bolts O, against theside of the mount and by boltso against the outer face of the head.

The motor illustrated is of the inclosed type, and the head N is as aconsequence dished outwardly to accommodate the shaftbearing Q andcommutator R within it. To permit access to the commutator and armature,the head N may be provided with a door S.

Both of the shaft-bearings, it will be seen, are on the inside of theheads. Thus there are no projecting parts liable to be injured and throwthe motor out of action. The motor serves to brace and strengthen therammermount and occupies a space .heretofore notl preferably IOO IIO

utilized for any purpose, a consideration of much importance in therestricted areas where apparatus of this character is used.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

l. In a telescopic rammer for ordnance, the combination with thetelescopic sections, mount in which they are supported having an openingextending transversely therethrough below the sections and gearing foroperating the sections, of an electric motor for said gearing located insaid transverse opening, a flange on the motor and bolts uniting theflange and mount 3 substantially as described.

2. In a telescopic rammer for ordnance,the'

combination with the telescopic sections, the mount in which they arecarried having transverse openings in its sidewalls below the sectionsand gearing for operating the sections, of an electric motor for saidgearing having its frame extending through and fitting said openings anda flange seating -against one of said side walls and connected thereto 3substantially as described.

3. In a telescopic ramrner for ordnance,-the combination with thetelescopic sections, the mount in which they are carried havingtransverse openings in its side walls below the sections and gearing foroperating the sections, of an electric motor for said gearing having aframe extending into the mount through one of said openin vs andinclosing heads for said frame locate at each side of the mount `andhaving the bearings for the motor-shaft on their inner sides;substantially as described.

4. In a telescopic rammer for ordnance,the combination with thetelescopic sections, mount in which they are carried having openings inits side walls below the sections and gearing for operating thesections, of the motor for said gearing having its frame fitting theopenings in the side walls of the mount, the flan e fitting against oneof said walls and the olts passin through said flange and walls;substantial y as described.

5. In a telescopic rarnrner for ordnance,the combination with thetelescopic sections, mount in which they are supported having atransverse opening therethrough below the sections, of an electric motorfor operating said sections having a flanged field-'ring ttin in saidopening bolts uniting the flange an mount `and heads for closing theends of said ring having internal bearings for the motorshaft;substantially as described.

ALFRED A. THRESHER.

Witnesses:

ALEXANDER S. STEUART, THOMAS DURANT.

